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| author | Felix Fietkau <nbd@openwrt.org> | 2007-06-19 22:29:51 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2007-06-19 22:29:51 +0000 |
| commit | 000ae30f6f7f195adfd94da9df8699d08006f660 (patch) | |
| tree | da05d7969e6b628d62846bef07a6409f0d608953 | |
| parent | 1664a51c3be320e9845388d3f3b6f6fc9a465c52 (diff) | |
| download | upstream-000ae30f6f7f195adfd94da9df8699d08006f660.tar.gz upstream-000ae30f6f7f195adfd94da9df8699d08006f660.tar.bz2 upstream-000ae30f6f7f195adfd94da9df8699d08006f660.zip | |
add brcm47xx mtd corruption fix by b.sander (#1502)
SVN-Revision: 7675
| -rw-r--r-- | target/linux/brcm47xx-2.6/files/drivers/mtd/maps/bcm47xx-flash.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/brcm47xx-2.6/files/drivers/mtd/maps/bcm47xx-flash.c b/target/linux/brcm47xx-2.6/files/drivers/mtd/maps/bcm47xx-flash.c index 5068af848f..6a82f362c6 100644 --- a/target/linux/brcm47xx-2.6/files/drivers/mtd/maps/bcm47xx-flash.c +++ b/target/linux/brcm47xx-2.6/files/drivers/mtd/maps/bcm47xx-flash.c @@ -80,6 +80,22 @@ extern struct ssb_bus ssb; #endif static struct mtd_info *bcm947xx_mtd; +static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + if (len==1) { + memcpy_fromio(to, map->virt + from, len); + } else { + int i; + u16 *dest = (u16 *) to; + u16 *src = (u16 *) (map->virt + from); + for (i = 0; i < (len / 2); i++) { + dest[i] = src[i]; + } + if (len & 1) + *((u8 *)dest+len-1) = src[i] & 0xff; + } +} + static struct map_info bcm947xx_map = { name: "Physically mapped flash", size: WINDOW_SIZE, @@ -372,6 +388,7 @@ int __init init_bcm947xx_map(void) printk("Failed to ioremap\n"); return -EIO; } + simple_map_init(&bcm947xx_map); if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) { @@ -380,6 +397,9 @@ int __init init_bcm947xx_map(void) return -ENXIO; } + /* override copy_from routine */ + bcm947xx_map.copy_from = bcm947xx_map_copy_from; + bcm947xx_mtd->owner = THIS_MODULE; size = bcm947xx_mtd->size; |